Battery King
Calculating delivery time...Battery for KETELES K820 & K820PRO - 48V E-Bike Battery
Battery for KETELES K820 & K820PRO - 48V E-Bike Battery
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48V 13Ah Replacement Battery for KETELES K820 & K820PRO – High-Performance Lithium Pack
Specifications
| Brand | Battery King |
| Model | BK4PIN48V13H |
| Voltage | 48V |
| Battery Capacity | 13Ah |
| BMS | 30A Intelligent Motherboard |
| Charging Pins | 5 Pins |
| Charger Included | 54.6V 3A Powerful Charger |
| Connector Type | XT60 |
| Single Cell Specification | 2600mAh EVE (A+ Grade Cells) |
| Battery Configuration | 13-series 5-parallel |
| Battery Size | 370mm × 110mm × 90mm |
| Battery Type | Lithium-Ion (Li-Ion) |
| Suitable Motor Power | 200W–1000W |
| Part Type | Replacement Battery |
| Number of Items | 1 |
| Compatible Models | KETELES K820, K820PRO |
| Set Includes | Battery, Charger, 2x Keys, 5-Pin Discharge Cable with Base (XT60), XT60 Connector, Manual |
| Certificates | UKCA, CE, UN38.3, MSDS |
| Item Weight | 5.5 kg |
| Color | Black |
Product Description
This high-performance 48V 13Ah Hailong Lithium Battery is engineered as a reliable replacement or upgrade for the KETELES K820 and K820PRO electric bikes. Designed for strong acceleration, stable power output, and improved hill-climbing performance, it is ideal for long-distance rides, hilly terrain, and daily commuting.
Key Features
- High-Power 48V 13Ah Output: Provides smooth acceleration and strong torque for demanding rides.
- A+ Grade 2600mAh Cells: Ensures long cycle life and stable voltage delivery.
- 30A Intelligent BMS: Protects against overcharge, over-discharge, overheating, overcurrent, and short circuits.
- Wide Motor Compatibility: Suitable for 200W–1000W systems commonly used in KETELES e-bikes.
- 5-Pin Charging Port: Secure and efficient charging interface.
- USB Output: Allows charging of small devices during rides.
- Integrated Lock: Provides security and theft protection with two keys included.
- On/Off Switch: Extends battery lifespan by cutting power when not in use.
Base Plate Requirement
The original battery mount of the KETELES K820 and K820PRO is different from this Hailong battery. Therefore, the base plate may need to be changed for proper installation.
We provide a compatible base plate free with this battery to ensure correct fitting.
Why Choose This Battery?
This 48V 13Ah Hailong pack offers a strong and durable power upgrade, enhancing acceleration, range, and overall riding performance on KETELES models. Whether for commuting or adventure riding, it provides consistent and reliable output.
Quality & Reliability
Each battery undergoes strict factory testing for voltage accuracy, capacity validation, and long-term stability. Designed for hundreds of charge cycles, this replacement battery restores your e-bike’s power and performance to optimal condition.
FAQs
Do I need to cover the shipping costs?
Currently, we offer free shipping on our products. We also provide Next-Day delivery using Royal Mail Tracked service. For any additional services, please contact our after-sales support for a quote.
How long will it take for my order to dispatch?
Orders are usually dispatched the same day or next business day.
How do I return a product or exchange an incorrect item?
If you received the wrong, defective or faulty products, please contact us within 48 hours of delivery at: batteryking.gb@gmail.com. For defective or faulty products, please take photos or videos - we will replace or refund your purchase after confirmation.
Can I pay with a credit card or in instalments?
We accept most credit cards and support popular payment methods like PayPal, Apple Pay, and Google Pay. Klarna, including Pay Now and Pay Later options, will be available soon for installment payments.
Are Battery King's products certified?
Battery King's products undergo rigorous laboratory testing and certification, and our products hold CE and other certifications that meet European standards.
Please read our FAQs page to find out more.
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